Spool.



PATBNTED JAN. '7, 1908- P. HARDMAN.

SPOOL.

APPLICATION FILED M120. 1907.

PETER HARDMAN, OF ELILLIHANTIC, CONNECTICUT.

SPOOL.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed February 20.1907, Serial No. 358.361.

T all whom it may concern:

Be it known that PETER HARDMAN, a citizen of the UnitedStates, residing at VVillimantic, Windham county, Connecticut, has invented certain new and useful Improve- 'n1ents m, Spools, of which the following is a full, clear, and exact -descri tion.

M invention relates to lmprovemeuts in spoo s for thread'and the like, and the object is to provide a simple, inexpensive and light weight article of that type, the same when com leted possessing great strength and durabi 'ty, the head portion thereof being so constructed as to efiectively resist endwise str'ains caused by the thread upon the spool.

- i In the accompanying drawings Figure 1 is a longitudinal sectional view of the completed article. Fi 2 is an end elevation of the same. Fig. 3 1s a detail of the securing means for the heads. Fig. 4 is a plan view of a strip of paper from which the wedges are I formed The. body or cylindrical portion of the spool is de'signatedby the numeral 1, and is preferably formed of a strip of aper wound u on itself to form ,a series o laminations w 'ch may be cemented to ether (by glue,

. for instance) and which col ectively constitute a tube of sufficient thickness to give the necessary strength.

. 2 2 are the heads preferably formed of ulp, in accordance with my prior patent 0. 843,454, of February 5, 1907, and of the q usual shape, provided with a central tapered 85 opening 2*.

' -3 3 are. annular wedge members preferably formed ofa tapered strip of paper 3 wound upon itself to form a series of overlapping laminations which, like the spool body, may be cemented or glued together, and are of such size as to snugly fit the s 001 body.

After formin the wedges as set orth, each a coat of some adhesive medium and the heads moved outward, so that their tapered interiors ride upon the split wedges, which will begin to close, caused by the pressure from the inside walls of the heads, thus tightening the wedge 3 upon the body. The spaces formed between the serrated surfaces of the wedges and the tapered portion of the heads form pockets for the adhesive medium, guaranteeing the presence of a su'llicient quantity thereof, being held on the surface of the wedge as the head is moved outward to engage the same.

Any outward strain upon the head portions will only cause them to bind the wedges and thereby become more firmly united to the body ortion.

l/Vhat claim is:

1. In a spool, a hollow body portion, a separate head portion therefor, and means for uniting said head and body portions comprising an annular wedge member secured to the outer side of the body portion and entering between said head and body portions.

2. In a spool, a hollow body portion, a separate head portion therefor, and means for uniting said head and body portions comprising an annular wedge member secured to the said body portion and entering within said head portion one surface thereof being serrated.

3. In a spool, a hollow body, a separate head portion therefor, and means for uniting said head portion and body comprising an annular split wedge member provided with a serrated outer surface secured to said body and engaging said head portion.

4. In a spool, a body portion, a separate head portion therefor, and means for uniting ,said head and body portions comprising a laminated split wedge portion secured to said body portion and engaging said head portion.

5. In a spool, a body portion, a separate head portion provided with a central tapered aperture, a laminated split wedge member secured to said body portion engaging in said tapered portion of the head to unite said head and body portions.

6. In a spool, a body portion, a separate head portion provided with a central tapered aperture, an annular laminated split wedge membersecured to said body portion and entapered annular Wedge uniting said head and gaging said head portion, said Wedge member body portions. 4

having a serrated surface. I 7. In aspool, a body portion, a separate PETER N' 5 head portion, an annular Wedge member se Witnesses: 1

cured to the body portion consisting ofa DWIGHT A. LYMAN,

tapered strip bound upon itself to form the THOMAS FQDOYLE. 

